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Problem- Naturally occurring Mg exists as isotopes 24-Mg, 25-Mg, and 26-Mg. Given the information in the following table, determine the mass of 24-Mg, the most abundant natural isotope.

Isotope ---------- Abundance ------------ Mass

24-Mg ---------- 78.99% ------------- ?

25-Mg ---------- 10.00% ------------ 24.98584 amu

26-Mg ---------- 11.01% ----------- 25.98259 amu

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